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ECIL GET 2017 Recruitment: Electronics Section Quiz 12

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Question 1

A peak detector comprises a capacitor and an ideal diode and an ac source in series. Which of the following is true of the circuit.

Question 2

A source produces 4 symbols with probabilities 1/2,1/4,1/8,1/8. For this source, a practical coding scheme has an average codeword length of 2 bits/symbol. The efficiency of the code is

Question 3

Microprogramming is a technique commonly

Question 4

A single input single output linear time invariant system described by nth order differential equation is adequately described in state space by

Question 5

How many machine cycles will the execution of instruction STA 2000 H instruction take in an 8085 processor

Question 6

For a pair of lossless magnetically coupled coils with respective self inductances

(with

and mutual inductance

the following is generally true.

Question 7

A semiconductor is uniformly doped with

acceptors and

donors. Let the free electron and hole concentrations be

and

respectively. Assume that the semiconductor is at thermal equilibrium and that 100% ionization has taken place. Then which of the following is true?

Question 8

Consider the linear, constant coefficient, first order differential equation

The following is generally true.

Question 9

Two identical resistive loads consume

watts each when connected in parallel across an ideal current source of l amperes. If, instead, they were connected in series with the same source, their total consumption

Question 10

What is 4 point Discrete Fourier Transform of signal x(n) = ( 1, 2, 3, 4 )

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ESE & GATE EC General

Feb 28ESE & GATE EC